Zobrazeno 1 - 10
of 77
pro vyhledávání: '"R. A. Chakalov"'
Publikováno v:
Physical Review Applied
Microwave-to-optical conversion via ferromagnetic magnons has so far been limited by the optical coupling rates achieved in millimeter-scale whispering-gallery-mode resonators. Toward overcoming this limitation, we propose and demonstrate an open mag
Publikováno v:
Ferroelectrics. 371:127-132
Manganite thin films showing colossal magnetoresistance, large resistance change at the metal-to-insulator (M-I) transition temperature and high spin polarization, are promising candidates for a new generation of electronic devices including magnetor
Publikováno v:
Journal of Physics: Conference Series. 26:115-118
Cross-sectional TEM and microanalysis were carried out to understand at a microscopic level the effects of microstructure and chemistry on the physical properties of manganites and manganite/cuprate films. TEM observations on pure LCMO grown on a (11
Autor:
E. S. Vlakhov, A. Szewczyk, T. Donchev, E Mateev, K. Piotrowski, M. Baran, R. A. Chakalov, Konstantin Nenkov
Publikováno v:
Journal of Magnetism and Magnetic Materials. :955-958
Magnetotransport properties of thin films of La 1− x Ca x MnO 3 ( x = 0.3 ; 0.51) deposited on LaAlO 3 and SrTiO 3 substrates were investigated. Compressively strained La 0.7 Ca 0.3 MnO 3 layers reveal semiconducting behaviour and charge ordered in
Autor:
J.S. Abell, Ian P. Jones, C.N.W. Darlington, F. Wellhofer, M. S. Colclough, G. Kong, Timothy J. Jackson, R. A. Chakalov, C. M. Muirhead
Publikováno v:
Thin Solid Films. 468:332-337
YBa2Cu3O7−x thin films grown by pulsed laser deposition on vicinal SrTiO3 (001) substrates frequently exhibit holes. These appear to be directly correlated with the incidence of epitaxial yttria precipitates within the film and with suppression of
Publikováno v:
Vacuum. 76:249-252
Thin films of La 1− x Ca x MnO 3 ( x = 0.3 , 0.51) have been deposited on LaAlO 3 (LAO) and SrTiO 3 (STO) substrates by magnetron sputtering (MS) and pulsed laser deposition (PLD). Lattice strain induced by substrate misfit results in drastic chang
Publikováno v:
Physica C: Superconductivity. 407:73-81
Ca- and Zn-subsituted Y1-xCaxBa2(Cu1-yZny)O7-delta (x = 0, 0.05 and y = 0, 0.02, 0.04, 0.05) thin films were grown on SrTiO3 (100) substrates using the pulsed laser deposition (PLD) technique. Effects of various growth parameters on the quality of th
Autor:
Timothy J. Jackson, G. Passerieux, I. Koutsonas, Michael J. Lancaster, R. I. Chakalova, Ian P. Jones, R. A. Chakalov, W. F. Hu, C.N.W. Darlington
Publikováno v:
Integrated Ferroelectrics. 61:139-142
Charged defects were found to have a significant influence over the microwave properties of Ba0.05Sr0.95TiO3 thin films.
Publikováno v:
Integrated Ferroelectrics. 61:133-137
On-wafer dielectric measurements of Ba0.5Sr0.5TiO3 thin films have been established over broad frequency ranges (40 Hz–50 GHz), using metallic coplanar transmission lines patterned onto the films. The films show tuneability of 27% and 18% at 1.6 kV
Publikováno v:
Superconductor Science and Technology. 17:S511-S514
We report on the suppression of critical current in Y Ba2Cu3Ox thin films by the injection of spin-polarized electrons from colossal magnetoresistive (CMR) materials La0.67Ca0.33MnO3 and La0.67Sr0.33MnO3. We compare the effect of pulse and direct cur